S. Muessig
Clyde T. Hardy
1952
<p><span>The </span>Fish<span> </span>Lake<span> </span>Plateau<span>, nearly centrally located among the High Plateaus of </span>Utah<span>, exhibits glacial and other geomorphic features of regional significance. The </span>plateau<span> is divided into two areas by </span>Fish<span> </span>Lake<span> and the wide valley of Sevenmile Creek. The </span>Fish<span> </span>Lake<span> trough is a structural basin; Sevenmile Valley may be largely erosional. Volcanic rocks of Tertiary age underlie most of the </span>plateau<span>; early Tertiary sedimentary rocks are also present. Glaciated canyons with well-developed cirques are especially prominent along the east-facing sides of the </span>Fish<span> </span>Lake<span> trough and Sevenmile Valley. Ice-eroded features occur over much of the </span>plateau<span> top. Near the mouths of several of the glaciated canyons are two conspicuous sets of moraines. The older set is more extensive and less rugged than the younger and occurs at somewhat lower elevations. Two substages of </span>glaciation<span> thus recognized are correlated with Wisconsin I and II of Ray; probable correlatives of Wisconsin III, IV, and V are represented by moraines which are younger than these two sets. </span>Fish<span> </span>Lake<span> drains north into Fremont River, a tributary of the Colorado River. An abandoned southern outlet and waterfall, the latter at a higher elevation than the present elevation of the original northern bedrock divide, indicate </span>drainage<span> reversal. Evidence is presented which suggests that this reversal was pre-glacial and probably the result of fault-block tilting. </span></p>
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10.1130/0016-7606(1952)63[1109:GADCIT]2.0.CO;2
en
Geological Society of America
Glaciation and drainage changes in the fish Lake Plateau, Utah
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